CN220502020U - Powder is with rotatory absorbing device that breaks up - Google Patents

Abstract

The utility model discloses a rotary scattering and sucking device for powder, and belongs to the technical field of powder conveying. The automatic feeding device comprises an inner pipe assembly, an outer sleeve assembly and a discharging head, wherein the outer sleeve assembly is rotatably sleeved on the outer wall of the inner pipe assembly, the discharging head is fixedly connected to the lower end of the outer sleeve assembly, a feeding pipe is arranged in the discharging head, a plurality of hob cutters are rotatably fixed on the bottom end face of the discharging head, and the hob cutters are formed by embedding and welding a plurality of conical bodies on the surface of a cylinder; when the rotary cutter is in operation, the outer sleeve assembly rotates with the discharge head, the rotary cutter rotates to break up powder after contacting compacted powder, and the powder is sucked into the inner tube assembly from the feed pipe. According to the utility model, the inner pipe assembly can stably suck materials, the outer sleeve assembly rotates to be matched with the discharging head to crush and break up compacted powder, so that the material sucking efficiency is improved, the scraping blade on the discharging head rotates along with the outer sleeve assembly to scrape the broken-up powder to the center of the pipe orifice of the feeding pipe, and the efficiency is ensured, and meanwhile, the powder can be completely sucked; meanwhile, the outer cover of the discharging head can prevent powder from splashing in the rotating process.

Description

Powder is with rotatory absorbing device that breaks up

Technical Field

The utility model relates to the technical field of powder conveying, in particular to a rotary scattering material suction pipe assembly for graphitizing battery materials.

Background

For powder conveying, for example, when the powder after traditional graphitization is sucked, the existing mode is that a suction head is manually operated to suck the powder in a container, the compacted material in the container is scattered while the powder is sucked, or a common rotary suction pipe is arranged on a lifting device to suck the powder; the powder can be sucked cleanly by manually operating the suction head, but the labor intensity is high, the labor safety is low, and the suction efficiency is low; the common feed inlet of the suction head is circular, the flow is small, and the bottom is not provided with a scraping plate and a hob, so that the materials in the container are difficult to be completely sucked.

Through searching, the Chinese patent application number is 201921621834.9, and the patent application document with the publication date of 2020, 6 and 19 discloses a negative pressure material sucking device. The negative pressure material sucking device comprises a material sucking mechanism arranged on the upper side of a roller conveyor, wherein the material sucking mechanism comprises a pressing plate for covering an upper opening of a sagger, an exhaust pipe for extending into the sagger to suck air, and an air charging pipe for extending into the sagger to jet air to break up powder in the sagger, and the exhaust pipe is communicated with a negative pressure pipe. The negative pressure pipe is used for connecting a negative pressure source and sucking the powder in the sagger so as to transfer the powder in the sagger into the stock cylinder. The air charging pipe can crush the agglomerated powder in the sagger before suction, and more utilizes the transfer of the powder in the sagger. However, for powder with smaller particles, such as graphite powder, the particles are very small, and if air injection is adopted to break up materials, dust is generated, so the device is not suitable for occasions of graphitizing powder and absorbing materials of the negative electrode material; and the device can not scrape the powder of scattering to inlet pipe mouth of pipe center, leads to some material to inhale uncleanly.

Disclosure of Invention

1. Problems to be solved

The utility model aims to overcome the defects of the prior art, and provides a rotary scattering suction pipe assembly for graphitizing battery materials, which aims to solve the problems of low suction efficiency, incomplete suction, powder splashing and the like of agglomerated powder (for example, graphitized powder) in the suction process.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The rotary scattering and sucking device for powder comprises an inner pipe assembly, an outer sleeve assembly and a discharging head, wherein the outer sleeve assembly is rotatably sleeved on the outer wall of the inner pipe assembly, the discharging head is fixedly connected to the lower end of the outer sleeve assembly through threads, the discharging head comprises a shell, the shell is a conical outer cover formed by welding steel plates, a feeding pipe is arranged in the shell, a plurality of hob are fixed on the bottom end face of the discharging head in a autorotation mode, and the hob is formed by embedding and welding a plurality of cones on the surface of a cylinder; when the rotary cutter is in operation, the outer sleeve assembly is externally connected with the motor to rotate, so that the discharging head is driven to rotate, the rotary cutter rotates to break up powder after contacting the compacted powder, and the powder is sucked into the inner tube assembly from the feeding tube.

Further, the inner tube assembly comprises an inner tube and a check ring fixed on the inner tube, at least two check rings are arranged, the outer sleeve assembly is sleeved on the inner tube, and meanwhile, the check ring is used for limiting displacement of the outer sleeve assembly on the inner tube.

Further, the outer sleeve assembly comprises an outer tube, the outer tube is sleeved outside the inner tube, the outer tube and the inner tube are rotatably connected through at least two bearings, sealing elements are arranged on the end faces of the bearings, and the sealing elements are preferably high-temperature-resistant framework oil seals.

Further, in order to save cost, the inner pipe is welded into a whole by 5 sections of steel pipes, and a bearing matching surface and a retainer ring limiting groove are processed at corresponding positions; the check ring is arranged in the check ring limiting groove.

Further, at least one sprocket is fixedly sleeved on the outer tube, when the discharging device is in operation, the sprocket is stressed to rotate to drive the outer tube to rotate, namely, the motor drives the sprocket to rotate to drive the outer tube to rotate, the inner tube assembly always keeps a static state, and the discharging head is arranged at the lower end of the outer tube to rotate together.

Further, the outer tube is formed by welding a steel tube and flanges at the upper end and the lower end: the inner holes of flanges at the upper end and the lower end of the outer tube are matched with the outer diameter of the bearing, namely the inner walls of the flanges at the upper end and the lower end are respectively connected with the outer wall of the inner tube through the bearing; the flange at least one end of the outer tube is externally connected with a chain wheel through threads, the bearing connected with the inner wall of the flange at the end is a tapered roller bearing which bears axial force and radial force, and the bearing connected with the inner wall of the flange at the other end is a deep groove ball bearing which can bear radial force.

Further, a plurality of scraping blades are further fixed on the bottom end face of the discharging head close to the edge, and the lengths of the scraping blades extend to the outside of the bottom end face of the discharging head and are used for scraping scattered powder to the lower portion of the feeding pipe.

Further, the wiper blade is made of high temperature resistant silicone rubber.

Further, the bottom end face of the discharging head is fixedly connected with a plurality of pairs of pressing plates, one of the pressing plates is fixed on the bottom end face of the discharging head, the other pressing plate is fixed with the other pressing plate through bolts, the scraping plates are fixed by the pressing plates, detachable connection of the scraping plates is achieved, and abrasion replacement of the scraping plates is facilitated.

Further, the feed tube comprises a gradual change mouth section which gradually enlarges from an inlet end to an outlet end.

Further, the inlet pipe includes the feed section, first gradual change mouth section, second gradual change mouth section and the ejection of compact section of intercommunication in proper order:

the opening of the feeding section is a flat opening shape with equal diameter to increase the flow, the flat opening shape of the feeding section comprises, but is not limited to, a rectangular opening and a runway circle, and the two sides of the runway circle are respectively connected with two semicircles;

the openings of the first gradual change port section and the second gradual change port section from the inlet end to the outlet end gradually become larger, and: the opening of the first gradual change port section is a variable-diameter flat port, and the flat port-shaped opening of the first gradual change port section comprises, but is not limited to, a rectangular port and a runway circle; the opening of the second gradual change port section is a diameter-variable round or square;

the opening of the discharging section is a circular opening or a square opening with equal diameter.

Further, the bottom end surface of the discharging head is fixedly provided with a plurality of pairs of hob supports through threads, two ends of each hob are inserted into each pair of hob supports in a matched mode, and when the automatic discharging device works, the hob rotates between each pair of hob supports.

Further, the hob support is inserted with a wear-resistant member, and the hob end face is inserted into the wear-resistant member.

Further, the wear-resistant piece is a copper sleeve.

3. Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

in the working process of the rotary scattering and sucking device for powder, the motor drives the outer sleeve assembly to rotate, the outer discharger connected with the inner tube assembly always keeps a static state for sucking the powder, and the discharge head is connected with the lower end of the outer sleeve assembly in a threaded manner to rotate together. According to the utility model, the inner pipe assembly can stably suck materials, the outer sleeve assembly is rotated to be matched with the hob on the discharge head to crush and break up compacted powder, so that the material sucking efficiency is improved, the scraping plate on the discharge head rotates along with the outer sleeve assembly to scrape the broken-up material to the center of the mouth of the feed pipe of the discharge head, and the powder can be completely sucked while the efficiency is ensured; meanwhile, the outer cover of the discharging head can prevent powder from splashing in the rotating process.

Drawings

FIG. 1 is a schematic diagram of a rotary scattering and sucking device for powder materials;

FIG. 2 is a schematic cross-sectional view of an inner tube assembly of the rotary scattering suction device for powder material according to the present utility model;

FIG. 3 is an enlarged view of a portion of area A of FIG. 2;

FIG. 4 is an enlarged view of a portion of region B of FIG. 2;

FIG. 5 is a schematic cross-sectional view of an outer sleeve assembly of the rotary scattering suction device for powder material according to the present utility model;

FIG. 6 is an enlarged view of a portion of region C of FIG. 5;

FIG. 7 is an enlarged view of a portion of region D of FIG. 5;

FIG. 8 is a schematic view of the structure of the discharge head in the rotary scattering suction device for powder material according to the present utility model;

FIG. 9 is a schematic view of the structure of the bottom end face of the discharge head in the rotary scattering suction device for powder material according to the present utility model;

FIG. 10 is a schematic view showing a cross-sectional structure of a discharge head in a rotary scattering suction device for powder material according to the present utility model;

FIG. 11 is an assembly view showing the working state of the rotary scattering suction device for powder material.

In the figure:

1. an inner tube assembly; 11. an inner tube; 12. a retainer ring; 2. an outer sleeve assembly; 21. an upper end cap; 22. an outer tube; 221. tapered roller bearings; 222. deep groove ball bearings; 223. a seal; 23. a sprocket; 24. a lower end cap; 3. a discharging head; 31. a housing; 32. a feed pipe; 321. a feed section; 322. a first gradual change port section; 323. a second gradual change port section; 324. a discharging section; 33. a hob support; 331. a wear part; 34. a hob; 35. a pressing plate; 36. a wiper blade; 4. and a motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. In the drawings, the dimensions and proportions are not representative of actual product dimensions and proportions, the drawings are merely illustrative, and certain unnecessary elements and features are omitted for the sake of clarity.

Examples

In order to solve the problems of low material sucking efficiency, unclean material sucking, powder splashing and the like in the manual material sucking process, the rotary scattering material sucking device for powder in the embodiment aims at sucking graphitized powder of battery materials, and is shown in combination with fig. 1, and comprises an inner pipe assembly 1, an outer pipe assembly 2 and a discharging head 3, wherein the outer pipe assembly 2 is sleeved on the outer wall of the inner pipe assembly 1, and the displacement of the outer pipe assembly 2 on the inner pipe assembly 1 is limited; meanwhile, the outer sleeve assembly 2 is connected with the inner tube assembly 1 through a bearing, so that the outer sleeve assembly 2 rotates on the inner tube assembly 1. The discharging head 3 is fixedly connected to the lower end of the outer sleeve assembly 2 through threads, the discharging head 3 comprises a shell 31, the shell 31 is a conical outer cover formed by welding steel plates, a feeding pipe 32 is arranged in the shell 31, two hob 34 are fixed on the bottom end face of the discharging head 3 in a autorotation mode, and the hob 34 is formed by embedding and welding a plurality of cones on the surface of a cylinder; when the rotary powder feeding device works, the outer sleeve assembly 2 is externally connected with the motor 4 to rotate, the discharging head 3 is driven to rotate, the hob 34 rotates to break up powder after contacting compacted powder, the inner tube assembly 1 is externally connected with the discharger to always keep static to suck the powder, and the powder is sucked into the inner tube assembly 1 from the feeding tube 32.

Specifically, as shown in fig. 2, the inner tube assembly 1 comprises an inner tube 11 and a retainer ring 12, in order to save cost, the inner tube 11 of the embodiment is welded into a whole by 5 sections of steel tubes, and bearing matching surfaces and retainer ring limiting grooves are machined at corresponding positions; as shown in fig. 3 and 4, two retaining rings 12 are respectively installed in the retaining ring limiting grooves for limiting the displacement of the outer sleeve assembly 2 on the inner tube 11.

As shown in fig. 5 to 7, the outer sleeve assembly 2 includes an upper end cover 21, an outer tube 22, a sprocket 23 and a lower end cover 24, wherein flanges are respectively provided at the upper and lower ends of the outer tube 22, and wherein: the upper end cover 21 and the chain wheel 23 are in threaded connection with a flange at the upper end of the outer tube 22; the lower end cap 24 is threadedly coupled to a flange at the lower end of the outer tube 22. The flange inner holes at the upper end and the lower end of the outer tube 22 are matched with the outer diameter of the bearing to be processed to form a bearing limit, the tapered roller bearing 221 capable of bearing axial force and radial force is assembled in the inner hole at the upper end, and the deep groove ball bearing 222 capable of bearing radial force is assembled in the inner hole at the lower end; the inner holes of the upper end cover 21 and the lower end cover 24 are matched with the outer diameter of the sealing piece 223, the sealing piece 223 is arranged inside, and a framework oil seal is selected as the sealing piece 223 in the embodiment. During operation, the inner tube 11 and the outer tube 22 are matched to rotate relatively through two bearings, and the check ring 12 on the inner tube 11 limits the up-down position of the outer tube assembly 2.

As shown in fig. 8, the discharge head 3 comprises a shell 31, a feed pipe 32, a hob support 33, a hob 34, a pressing plate 35 and a scraping blade 36; wherein the shell 31 is a conical outer cover welded by steel plates at the outer part; the feed pipe 32 is assembled inside the housing 31; the structure of the bottom end face of the discharge head 3 as shown in fig. 9 is as follows: the feed pipe 32 is arranged at the middle position, and the lower end of the feed pipe 32 is separated by a plurality of baffles in order to increase the air inlet pressure; a pair of hob supports 33 are respectively arranged at the upper and lower positions of the feed pipe 32, and the hob supports 33 are in threaded connection with the bottom plane of the shell 31; the hob 34 is formed by embedding and welding a plurality of cones on the surface of a cylinder, a circular groove is formed in the surface of the cylinder of the hob 34, the cones are inserted and welded, fixed shaft ends and positioning bosses are formed at two ends of the cylinder, and the fixed shaft ends and the positioning bosses are inserted into the hob support 33 in a matched mode, so that free rotation of the hob 34 is achieved. In order to reduce the abrasion of the hob support 33, the hob support 33 is provided with the wear-resistant part 331, the wear-resistant part 331 of the embodiment is a copper sleeve, and the fixed shaft ends at two ends of the hob 34 and the positioning boss are matched and inserted into the copper sleeve and rotate in the copper sleeve.

In order to collect the scattered powder and the powder adhered to the inner wall of the container storing the powder under the feed pipe 32, a pair of pressing plates 35 are used, one pressing plate 35 is fixedly welded on the bottom end face of the shell 31, and the other pressing plate 35 clamps and fixes the scraping blade 36 through bolts. Wherein the wiper 36 is at an angle of 40 to 50 degrees to the bottom end opening of the feed tube 32.

In order to improve the suction effect, as shown in fig. 10, the feed pipe 32 includes a feed section 321, a first gradual change port section 322, a second gradual change port section 323, and a discharge section 324 which are communicated from bottom to top in this order: the opening of the feeding section 321 is a rectangular opening with equal diameter to increase the flow rate; the openings of the first gradual change port section 322 and the second gradual change port section 323 from the inlet end to the outlet end gradually become larger, and the opening of the first gradual change port section 322 is a rectangle port with variable diameter; the opening of the second gradual change port section 323 is a circular port or a square port with variable diameter; the opening of the discharging section 324 is a circular opening or a square opening with equal diameter, through reducing, the airflow velocity of the rectangular opening of the feeding section can be accelerated, the scattered materials can be guaranteed to be sucked into the suction pipe rapidly, and the accumulation of the materials is prevented from blocking the feeding hole. While openings around the housing 31 provide for air circulation.

In the working process, as shown in fig. 11, the sprocket 23 is externally connected with the motor 4 to rotate, so that the outer sleeve assembly 2 rotates on the inner tube assembly 1, the discharging head 3 is assembled at the lower end of the outer sleeve assembly 2 to rotate together, the hob 34 rotates after encountering compacted powder in the rotating process, the cone on the hob 34 can crush and break up the powder, and meanwhile, the scraping blade 36 scrapes the broken powder and the powder adhered to the inner wall of the container below the feeding section 321 of the discharging head 3, so that the complete suction of the materials is ensured.

The embodiments described above are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (10)

1. The utility model provides a material device is inhaled with rotatory breaking up to powder which characterized in that: the automatic feeding device comprises an inner pipe assembly (1), an outer pipe assembly (2) and a discharging head (3), wherein the outer pipe assembly (2) is rotatably sleeved on the outer wall of the inner pipe assembly (1), the discharging head (3) is fixedly connected to the lower end of the outer pipe assembly (2), a feeding pipe (32) is arranged in the discharging head (3), a plurality of hob (34) are rotatably fixed on the bottom end face of the discharging head (3), and the hob (34) is formed by embedding and welding a plurality of cones on the surface of a cylinder; when the device works, the outer sleeve assembly (2) rotates with the discharging head (3), the hob (34) rotates to break up powder after contacting compacted powder, and the powder is sucked into the inner tube assembly (1) from the feeding tube (32).

2. The rotary scattering and sucking device for powder according to claim 1, wherein: the inner tube assembly (1) comprises an inner tube (11) and check rings (12) fixed on the inner tube (11), the check rings (12) are at least two, the outer sleeve assembly (2) is sleeved on the inner tube (11), and meanwhile the check rings (12) are used for limiting the displacement of the outer sleeve assembly (2) on the inner tube (11).

3. A rotary break-up suction device for powder material according to claim 2, wherein: the outer sleeve assembly (2) comprises an outer tube (22), the outer tube (22) is sleeved outside the inner tube (11), and the outer tube (22) and the inner tube (11) are rotatably connected through at least two bearings.

4. A rotary break-up suction device for powder material according to claim 3, wherein: the bearing end face is provided with a seal (223).

5. A rotary break-up suction device for powder material according to claim 3, wherein: the outer tube (22) is fixedly sleeved with at least one chain wheel (23), and when the outer tube is in operation, the chain wheel (23) is forced to rotate to drive the outer tube (22) to rotate.

6. The rotary scattering and sucking device for powder according to claim 1, wherein: the bottom end surface of the discharge head (3) is close to the edge and is also fixedly provided with a plurality of scraping blades (36), and the length of each scraping blade (36) extends to the outside of the bottom end surface of the discharge head (3) and is used for scraping scattered powder to the lower part of the feed pipe (32).

7. The rotary scattering and sucking device for powder according to claim 1, wherein: the feed tube (32) includes a gradual opening section that gradually enlarges from an inlet end to an outlet end.

8. The rotary scattering and sucking device for powder as claimed in claim 7, wherein: the feeding pipe (32) sequentially comprises a feeding section (321), a first gradual change port section (322), a second gradual change port section (323) and a discharging section (324), wherein the opening of the feeding section (321) is of a flat port shape with equal diameter, the opening of the first gradual change port section (322) and the opening of the second gradual change port section (323) from the inlet end to the outlet end gradually become larger, the opening of the first gradual change port section (322) is of a flat port shape with variable diameter, the opening of the second gradual change port section (323) is of a round or square shape with variable diameter, and the opening of the discharging section (324) is of a round or square port with equal diameter.

9. A rotary break-up suction device for powder according to any one of claims 1 to 8, characterized in that: the bottom end surface of the discharging head (3) is fixedly provided with a plurality of pairs of hob supports (33), two ends of each hob (34) are inserted into each pair of hob supports (33) in a matched mode, and when the discharging head works, the hob (34) rotates between each pair of hob supports (33).

10. The rotary scattering and sucking device for powder according to claim 9, wherein: the hob support (33) is internally inserted with a wear-resistant piece (331), and the wear-resistant piece (331) is internally inserted with the end face of the hob (34).